This is what i did : NLParse.exe tool, open the folder you specified during setup for ALTools, double-click Nlparse.exe, click Open to open the Netlogon.log file that you want to parse, select the check boxes for the status codes that you want to search for, and then click Extract. After you do this, view the output from the NLParse.exe tool. Typically, you may want to look at both the 0xC000006A and 0xC0000234 code statuses to determine from where the lockouts are coming.